My goal is to play with a club in the Champions League.
I've turned into a full-back who pushes forwards whereas in Italy usually the full-back concentrates more on defending.
I don't see my season with Dortmund negatively. There were some real problems there in the dressing room and they were going through a generation change.
I could have given more and I'm sorry about how it all ended, but I still look back on my time in Germany positively.
